Rob Nicholson

Indeed but the writing is on the wall. Classic Outlook will be EOL in 2029. Sure, quite a few years. It's why I wrote "One Outlook will be a total breaking change for GCSM"

I only mentioned PST as that is a way to export/import contacts manually between systems albeit not easily. I've got a test VM with New Outlook. GCSM doesn't work. Throws this error. So this is a showstopper as classic Outlook will be retired soon:

Yes, Outlook classic currently works fine but the desktop versions (inc. M365) versions will be replaced by the progressive web application at some point - I'd guess at next one to two years. It could be that the replacement web interface (assuming there is one) is easier to use and less prone to breaking changes that the current methods. Certainly for M365/Exchange, you'd be keeping an Exchange based contact list synchronised, not a local copy. Not sure about non-Exchange standalone installations...

One assumes that this application is now on death row as no response to above and One/New Outlook will be rolling out very shortly. Will be missed as managing two contact lists (Outlook and Google) is a right pain.

One Outlook breaking change

I've long battled with birthday synchronisation between Outlook and Google specifically I'm unable to totally delete birthdays. My ex's birthday was in Outlook and therefore it's in Google. Delete from either end/both ends but it always reappears ;-)

Yes thank you Live Free. This is about one of the only methods that works - with TrueCrypt as well which isn't too surprising